The focus of this article is the well documented association between low working memory capacity and difficulty with mathematical word-problem solving. We begin by describing a model that specifies how various cognitive resources, including working memory, contribute to individual differences in word-problem solving and by then summarizing…

The focus of this article is the well documented association between low working memory capacity and difficulty with mathematical word-problem solving. We begin by describing a model that specifies how various cognitive resources, including working memory, contribute to individual differences in word-problem solving and by then summarizing…

We examined dynamic assessment's (DA's) added value over traditional assessments for identifying Spanish-speaking English learners' (ELs) risk for developing mathematics disabilities, as a function of the language of test administration (English vs. Spanish), type of math outcome, and EL's language dominance. At the start of first grade, ELs (N =…

We examined dynamic assessment's (DA's) added value over traditional assessments for identifying Spanish-speaking English learners' (ELs') risk for developing mathematics disabilities, as a function of the language of test administration (English vs. Spanish), type of math outcome, and EL's language dominance. At the start of 1st grade, ELs (N =…

The purpose of this study was threefold: to examine unique and shared risk factors of comorbidity for reading comprehension and word-problem solving difficulties, to explore whether language minority (LM) learners are at increased risk of what we refer to as "higher order comorbidity" (reading comprehension and word-problem solving…

This study explored factors that are associated with calculation development among 176 children at-risk for learning difficulties. Data were collected on working memory, language, non-verbal reasoning, processing speed, decoding, numerical competence, incoming calculation, SES, and gender at the beginning of 1st grade and on calculations over 4…

Despite recent advances in the development of instructional interventions, many students with significant learning problems do not benefit from them. This includes 25% to 50% of students with learning disabilities (LD). In this article, we identify five limitations of current instructional programs that may help to explain students' inadequate…

The primary purpose of this study was to assess the effects of strategic counting instruction, with and without deliberate practice with those counting strategies, on number combination (NC) skill among students with mathematics difficulties (MD). Students (n = 150) were stratified on MD status (i.e., MD alone versus MD with reading difficulty)…

Two aspects of mathematics with which students with mathematics learning difficulty (MLD) often struggle are word problems and number-combination skills. This article describes a math program in which students receive instruction on using algebraic equations to represent the underlying problem structure for three word-problem types. Students also…

During the past several years, one of the most frequently addressed topics at conferences and in professional journals is responsiveness to intervention (RTI). This is because it is viewed by many as a new way to think about both early intervention and disability identification. Despite its relative newness, a subset of RTI proponents contend…

The purposes of this study were to assess the efficacy of remedial tutoring for 3rd graders with mathematics difficulty, to investigate whether tutoring is differentially efficacious depending on students' math difficulty status (mathematics difficulty alone vs. mathematics plus reading difficulty), to explore transfer from number combination (NC)…

This article describes the Math Peer Assisted Learning Strategies (PALS), a research-based practice developed with heavy teacher involvement. A case study of a school where Math PALS was developed, researched, and continues in use is followed by a discussion of principles for sustaining the use of research-based practices. Extensive figures detail…

The purpose of this pilot study was to assess the potential for computer-assisted instruction (CAI) to enhance number combination skill among children with concurrent risk for math disability and reading disability. A secondary purpose was to examine the effects of CAI on spelling. At-risk students were assigned randomly to math or spelling CAI,…

A review of the literature on young children unresponsive to generally effective literacy instruction focuses on 23 studies. It found a majority of unresponsive students had phonological awareness deficits. Also common were phonological retrieval or encoding deficits, low verbal ability, behavior problems, and developmental delays. Methodological…

This article explores the underutilization of consultation in educating students and the challenges consultation faces as an educational technology. The article also explains the politics of school reform and their impact on the research-to-practice gap. Recommendations are made on how to reconcile the fundamental differences separating…